Gastrointestinal Tract Flashcards
What are the 5 layers of the bowel wall?
Mucosa Muscularis mucosa Submucosa Muscularis propia Serosa
Which organs are intra-peritoneal?
Liver GB Spleen Stomach Intestines Ovaries
What is the “gut signature”?
The 5 distinct echogenic rings that form the bowel wall
What is the typical feature for Gut Pathology?
Pseudo-Kidney sign
90% specific for pathology
What is Mc Burney’s point?
Area over right side of abdominopelvic region extending from the umbilicus to the anterior superior iliac spine
What kind of transducer should be used in the evaluation of appendicitis?
5 MHZ linear array
Measurement of appendix when appendicitis is present
> 6 mm AP diameter
If compressed and still > 4 mm, it is diagnosis for appendicitis
Sonographic finding of Crohn’s Disease (Regional Enteritis)
Donut sign: bowel wall will be > 4 mm thick with echogenic center
What is Gossyphiboma?
Sterile abscess formed in peritoneal cavity if sponge is left after surgery
Sonographic appearance of goddyphiboma
Tender linear echo with acoustic shadowing
Sonographic findings of diverticulitis
Circumferential or asymmetrical thickening of the bowel wall
Edematous fat surrounding diverticula has similar appearance to thyroid tissue
Complications of diverticulitis
Obstruction and abscess formation
Most common GI tract malignant tumor
Adenocarcinoma 80%
Most common in stomach and colon
Sonographic appearance of adenocarcinoma of GI tract
Pseudo-kidney sign
What is hypertrophic pyloric stenosis?
Congenital narrowing of the pylorus
Seen most frequently in male infants
Presents the first 6 weeks of life
